1. JavaScript

   1. Inheritance & Prototype Chain
   2. Proxy & Reflect
   3. Event Loop
   4. Bundling & Modules
2. Typescript
3. Frontend

   1. Manifests
   2. PWA
   3. Web Security & Resource Hints
   4. Web Accessibility & Internationalization
   5. Web Vitals & Performance
   6. UI Loading Patterns
   7. UI Data Fetching
   8. React
4. Fullstack

   1. API Styles
   2. GraphQL
   3. ELK
   4. Electron
5. Dev Test Suites

   1. Component Test Suites
   2. API Test Suites
   3. End-to-End Test Suites
6. Frameworks

   1. Accelerated Mobile Pages
   2. Wordpress
   3. Nest.js
   4. Next.js
   5. Remix
7. System Design

   1. Architecture Patterns
   2. Design Patterns
   3. Data Patterns
   4. Auth Patterns
   5. Back-of-the-envelope estimation
8. System Design Algorithms
9. System Infrastructure

   1. Virtualization & Containerization
   2. Orchestration & Choreography
10. System Design Case Studies

    1. Collaborative Editing - Case Study
    2. Highly Available Media - Case Study
    3. Realtime Notifications & Timelines - Case Study
    4. Bulk Data Processing